Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Cell enclosure structure – e.g. – housing – casing – container,...
Reexamination Certificate
2007-09-28
2009-12-08
Mayes, Melvin C (Department: 1793)
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Cell enclosure structure, e.g., housing, casing, container,...
C429S094000, C429S208000, C029S623200
Reexamination Certificate
active
07629078
ABSTRACT:
A cylindrical battery, comprising: a cylindrical casing having a bottom, and has a short-diameter part near an opening thereof; an electrode assembly that is housed in the casing; and a sealing plate that seals the opening, wherein an insulating ring is inserted in a gap between the electrode assembly and the short-diameter part, the insulating ring including a main body, and at least three projections that are dispersively located and project outward from an outer edge of the main body in a diameter direction, and a distance between a design center point of the insulating ring and an outer edge of the main body is not longer than D/2 and a distance between the design center point and an outer edge of each of the projections is longer than D/2 and not longer than 102D/200, where D is an inside diameter of the casing measured within the space.
REFERENCES:
patent: 2006/0019159 (2006-01-01), Mori et al.
patent: 2002-93455 (2002-03-01), None
Inoue Hiroyuki
Nagao Akifumi
Shimozono Kazuki
Corno James
Mayes Melvin C
Sanyo Electric Co,. Ltd.
Westerman Hattori Daniels & Adrian LLP
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